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Osram LEDvance 20w 4000k 2000lm

Osram LEDvance 20w 4000k 2000lm

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Excellent for it's size

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Filename:DSC04728.JPG
Album name:lantern_vision / Lantern Vision's Lanterns
Keywords:Lanterns
File Size:406 KB
Date added:May 19, 2017
Dimensions:2464 x 1848 pixels
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Date Time:2017:05:19 20:42:45
DateTime Original:2017:05:19 20:42:45
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Flurofan96
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5ft 58W


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May 19, 2017 at 02:56 PM Author: Flurofan96
Thanks to the Chinese deal we now having LEDvance in the name

LED streetlights are flipping Yussless!!!! I'd may as well be in the dark!!!!!

Flaming Nora, where are SOX, SON, MH and MV when you need them

lantern_vision
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|><| Be RATIONAL |><|


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May 19, 2017 at 03:04 PM Author: lantern_vision
Well this one is a qualified OSRAM made one. U should test it and see it's difference to other no name products....

><@hm><

FGS
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May 19, 2017 at 05:59 PM Author: FGS
LEDVance is on the box because the product that came in it has LEDs. Other lighting tech will likely have Osram or Sylvania brand on the package.

Why I like LEDs on top of other lighting tech?
LEDs = Upgrade 95% of the applications. (That is if you avoid eBay's LEDs).


LED brainwash? No, people uses them cuz they work well for them.

tolivac
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May 19, 2017 at 10:58 PM Author: tolivac
My Olight LED flashlight puts out this kind of lumens-and its portable.
Ash
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May 19, 2017 at 11:41 PM Author: Ash
This thing still have the same shallow reflector as the Ebay stuff ? Come on Osram ?....

In the last batch of Dulux S lamps that arrived in our Home Center, the lamps are branded Osram but the website is ledvance.com. The thing that bothers me is that those lamps (all the Dulux S except 865) used to be made in Bari Italy. What happened to the Bari factory ?
Flurofan96
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May 20, 2017 at 04:34 AM Author: Flurofan96
Yes exactly them stupid shallow reflectors of COB LED floodlights Does a useless job of diffusing the light if LED floodlights had HID style reflectors like with induction or with properly made refractors, then I would not mind them a bit. I've got to say that this OSRAM LEDvance floodlight is probs the best looking one I've ever seen because of the opalish cover hiding the bare COB chip and the ugly reflector design

LED streetlights are flipping Yussless!!!! I'd may as well be in the dark!!!!!

Flaming Nora, where are SOX, SON, MH and MV when you need them

FGS
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May 20, 2017 at 05:06 AM Author: FGS
Making the reflector deeper would tighten the light spread. Since it's a FLOOD light, a shallow reflector is ideal.

Why I like LEDs on top of other lighting tech?
LEDs = Upgrade 95% of the applications. (That is if you avoid eBay's LEDs).


LED brainwash? No, people uses them cuz they work well for them.

Flurofan96
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May 20, 2017 at 05:30 AM Author: Flurofan96
Well here we are. LED floodlights ONLY suitable for applications if focused directional light is essential. Otherwise for mass general use, no way

LED streetlights are flipping Yussless!!!! I'd may as well be in the dark!!!!!

Flaming Nora, where are SOX, SON, MH and MV when you need them

FGS
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May 20, 2017 at 05:57 AM Author: FGS
No, you can use floodlights for general use. You simply won't waste light where it's not needed. Though I'm not sure what you mean by "mass."

Why I like LEDs on top of other lighting tech?
LEDs = Upgrade 95% of the applications. (That is if you avoid eBay's LEDs).


LED brainwash? No, people uses them cuz they work well for them.

Ash
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May 20, 2017 at 09:58 AM Author: Ash
But this is the problem with this design. The reflector is so shallow that it does virtually nothing to the light distribution
Flurofan96
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May 20, 2017 at 10:02 AM Author: Flurofan96
That it! Its totally useless

LED streetlights are flipping Yussless!!!! I'd may as well be in the dark!!!!!

Flaming Nora, where are SOX, SON, MH and MV when you need them

FGS
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May 20, 2017 at 11:01 AM Author: FGS
Then it's just decorative. No biggie then. They could have spread out the LEDs to fill the whole thing but decided not to. It probably doesn't cost much to put in a piece of stamped aluminum or steel reflector.

Why I like LEDs on top of other lighting tech?
LEDs = Upgrade 95% of the applications. (That is if you avoid eBay's LEDs).


LED brainwash? No, people uses them cuz they work well for them.

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May 20, 2017 at 11:06 AM Author: Beta 5
Unfortunately, its the crap Chinese ebay ones with no earth connected to their casing, that are popping up and killing off proper HID floods most often.
It would not be quite as bad if these were more common, HID is still preferable though, due to standard parts used that are easily replaced, say a 70w MH flood, uses an ignitor and 70w ballast - standard parts, where as this likely uses a specific LED driver, and the eBay class ones certainly do use non standard poor quality drivers etc.

Thorn Beta 5 35W SOX 1965 - 2008. Top entry/Side entry

Ash
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May 20, 2017 at 02:59 PM Author: Ash
It is indeed decorative - While in the HID versions it is functional

Surprise - The Ebay ones DO use standard parts. The 34V COBs and the drivers for them are standard parts for virtually all the cheap LED products. (or not cheap at all, as i found out when ordering a "100W" IR LED module)
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May 20, 2017 at 03:11 PM Author: Beta 5
I guess they are all equally crap too
a HID fitting will last longer of course, there are Thorn SONPAKs from the 80's and 90's still working today, sadly people who buy these stupid LED floodlights off ebay and install them in place of their HID floodlights have been brainwashed if they believe that the LED light will last 25 years, more like 25 days!

Thorn Beta 5 35W SOX 1965 - 2008. Top entry/Side entry

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May 20, 2017 at 03:22 PM Author: Flurofan96
The COB LED floodlight is one of the worst ideas of lighting TBH the light is too focused for it to consider it as a proper floodlight because of a tight beam. HID and induction is what I call proper floodlights because the flood the entire area with evenly distributed light SON makes places at night feel inviting

LED streetlights are flipping Yussless!!!! I'd may as well be in the dark!!!!!

Flaming Nora, where are SOX, SON, MH and MV when you need them

Ash
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May 20, 2017 at 04:09 PM Author: Ash
The drivers are all crap, but nothing prevents you from picking a good quality driver of matching parameters

The LEDs are... Some of them crap, either with damaged diodes (you can see it well if you supply the COB with low current) or easy to damage bond wires. Some are fine, its just that i'd not use them at >1/2 their rated power if i want any remote reliability. I.e. run the 3A 100W rated COB at 1.5A, the 1.5A 50W rated COB at 700mA and so on. Hopefully in such use they will work well

And some just have epicly nonsensical ratings. Like that IR module i bought... 10x10 diode array. That are IR LEDs so the total forward voltage is like 14V. The module is rated 3.5A 100W

The COB LED emits light like any flat surface. Ie. its photometric curve is a circle, with the LED itself being on the line of the circle. This means most of the light forward and lots of light lost at angles up to 90deg. Without optics this is as much as a light sourcce can do.... The reflector used with HID makes the light distribution much more directed forward

Floodlights never were meant to emit light in a wide beam, because if they were, most of this light would end up as light pollution outside of the target area
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^homebuilt fixture


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May 20, 2017 at 08:41 PM Author: xmaslightguy
From the 'looks' point of view this is a nice lantern. From the the 'quality' point of view only time will tell. I would assume its better than some of that really cheap stuff though.

Colored Fluorescent's such as F40T12 Red or  Green or Blue are awesome...

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